An initial autopsy on Ol' Dirty Bastard, who died on Saturday, has proved 'inconclusive'.

What that means, basically, is that the cause of his death won't be know until toxicology reports are filed and tissue-sample test results are available. Early signs suggest that the rapper suffered a heart attack, a story backed up by his wife, Icelene Jones, who told reporters that he had been complaining about chest pains.

ODB had a history of drug abuse, and there is speculation that this lead to the failing of his heart.